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Finding the Fourth Proportional to 539,276.80, 809,206.80 and 223,765.60

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Solution

The fourth proportional to 539,276.80, 809,206.80 and 223,765.60 is: 335,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,276.80 : 809,206.80 = 223,765.60 : x
  2. Step 2: Convert to fraction form
    539,276.80/809,206.80 = 223,765.60/x
  3. Step 3: Cross multiply
    539,276.80x = 809,206.80 × 223,765.60
  4. Step 4: Simplify right side
    539,276.80x = 181,072,645,126.08
  5. Step 5: Solve for x
    x = 181,072,645,126.08/539,276.80
  6. Step 6: Final answer
    x = 335,769.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.